Worksheetsmiddle 2 science quiz
Total questions: 10
Worksheet time: 5mins
All these elements are monovalent except …………………………….
11Na
19K
3Li
20Ca
The most active metal in group (1A) is …………………………….
cesium
potassium
calcium
sodium
The atomic size of the elements of the same group ………………….. by increasing their atomic number
increases
no correct answer
Solutions of Non-metal oxides turn the color of the litmus paper into ................
red
green
Elements in Moseley's periodic table are arranged according to the increase of
The modern periodic table consist of-------------------vertical groups.
7
18
16
10
Elements of block '‘ S ’' are located--------------------in the periodic table
on the right side
in the middle
on the left side
below
Noble gases are located in group------------------------
Elements of the same period have the same------------------------
number of electrons in outermost energy level.
number of energy levels.
atomic number.
number of protons.
Rutherford discovered that nucleus of atom contains .....................
negative electrons
neutrons
positive protons
energy levels
